JPS61192695U - - Google Patents
Info
- Publication number
- JPS61192695U JPS61192695U JP1985075175U JP7517585U JPS61192695U JP S61192695 U JPS61192695 U JP S61192695U JP 1985075175 U JP1985075175 U JP 1985075175U JP 7517585 U JP7517585 U JP 7517585U JP S61192695 U JPS61192695 U JP S61192695U
- Authority
- JP
- Japan
- Prior art keywords
- speed command
- speed
- command
- detection means
- switching circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 1
Landscapes
- Control Of Electric Motors In General (AREA)
Description
第１図は本考案の実施例を示すブロツク図であ
り、第２図は本考案の第２の実施例を示すブロツ
ク図である。
２……変流器、３……サイリスタスタツク、４
……直流電動機、５……速度発信機、１１Ａ……
１号速度指令器、１１Ｂ……２号速度指令器、１
２Ａ……位置発信器としての１号シンクロ発信器
、１２Ｂ……位置発信器としての２号シンクロ発
信器、１３……差動検出器、１４，１７……切換
えスイツチ、１５……指令一致検出手段としての
コンパレータ、１６Ａ，１６Ｂ……ダイオード、
２１……速度調節器、２２……電流調節器、２３
……点弧角調整器。
FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a second embodiment of the present invention. 2...Current transformer, 3...Thyristor stack, 4
...DC motor, 5...Speed transmitter, 11A...
No. 1 speed command, 11B...No. 2 speed command, 1
2A... No. 1 synchro transmitter as a position transmitter, 12B... No. 2 synchro transmitter as a position transmitter, 13... Differential detector, 14, 17... Changeover switch, 15... Command coincidence detection Comparator as means, 16A, 16B...diode,
21... Speed regulator, 22... Current regulator, 23
... Firing angle adjuster.
Claims (1)
指令器のいずれかから電動機速度を制御する速度
制御装置に速度指令信号を与えて当該電動機を所
定速度で運転させる装置において、前記速度指令
器のうちの任意の２個が出力する速度指令信号が
ほぼ一致するのを検出する指令一致検出手段と、
この指令一致検出手段が出力する一致信号により
一方の速度指令器から前記速度制御装置に与えら
れる速度指令信号を他方の速度指令信号に切換え
る速度指令切換え手段とが設けられていることを
特徴とする速度指令切換え回路。 (2) 実用新案登録請求の範囲第１項記載の速度
指令切換え回路において、前記指令一致検出手段
は各速度指令器に結合されている位置発信器と、
この位置発信器の出力信号同士がほぼ同じレベル
にあることを検出する手段とで構成されているこ
とを特徴とする速度指令切換え回路。 (3) 実用新案登録請求の範囲第１項記載の速度
指令切換え装置において、前記指令一致検出手段
は各速度指令器が出力する速度指令信号のレベル
差が所定範囲内にあるときに一致信号を出力する
コンパレータで構成されていることを特徴とする
速度指令切換え回路。[Scope of Claim for Utility Model Registration] (1) A speed command signal is given to a speed control device that controls the speed of an electric motor from one of the speed command devices installed at multiple locations to operate the electric motor at a predetermined speed. In the apparatus, a command coincidence detection means for detecting that speed command signals outputted by any two of the speed command devices substantially match;
A speed command switching means is provided for switching the speed command signal given from one speed command device to the speed control device to the other speed command signal based on the coincidence signal outputted by the command coincidence detection means. Speed command switching circuit. (2) Utility Model Registration In the speed command switching circuit according to claim 1, the command coincidence detection means includes a position transmitter coupled to each speed command;
A speed command switching circuit comprising means for detecting that the output signals of the position transmitters are at substantially the same level. (3) Utility Model Registration In the speed command switching device according to claim 1, the command coincidence detection means detects a coincidence signal when a level difference between the speed command signals outputted by each speed command device is within a predetermined range. A speed command switching circuit comprising a comparator that outputs an output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985075175U JPS61192695U (en) | 1985-05-21 | 1985-05-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985075175U JPS61192695U (en) | 1985-05-21 | 1985-05-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61192695U true JPS61192695U (en) | 1986-11-29 |
Family
ID=30616152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985075175U Pending JPS61192695U (en) | 1985-05-21 | 1985-05-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61192695U (en) |
-
1985
- 1985-05-21 JP JP1985075175U patent/JPS61192695U/ja active Pending
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